Hmmm. I see what your asking about, but I'm not too sure if that's an RPM. I searched Variety Vista and Wexlers Die Varieties and found none that match your example. Maybe I missed it somewhere. Hopefully someone else can put in their opinion. Good luck!
CoinHunter27 Collector of US errors and variety coins of all kinds
"Time is the coin of life. Only you can determine how it will be spent" -Carl Sandburg
While 008 is closest, I didn't find an exact match on any other the other ones on coppercoins. It maybe a new die number. On the 008, note there is a mark on the left side of the upright and the Mint mark is larger than your image. I even rotated all of them to horizontal by the bottoms of the 9 & 3 digits and they were not an exact match, even on the 008. So hang onto this one for now. Your MM has a bulge on the upper NE corner of the mint mark like 1983D-1MM-004: http://www.coppercoins.com/lincoln/...ie_state=mds But the location is different. So I'm thinking it is a new die number.